Collaborative robots are built to work in the same space as people, taking on the physically demanding parts of a job while workers handle judgment and quality. This article looks at how that division of labour works on the factory floor, how AI is widening the range of tasks cobots can take on, and why the reducer inside each joint carries so much of the reliability burden. It also introduces the Bonsystems BSR Series.
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In the past, when people imagined the robots of the future, they often pictured machines taking over human jobs entirely. As automation robot technology has advanced, robots have indeed helped reduce the burden on workers by handling repetitive and physically demanding tasks. However, robots cannot replace every task. On the factory floor, there are still situations that require flexible responses depending on the working environment or circumstances.
As a result, robots and people have increasingly begun working side by side, each taking on the tasks they are best suited for. When a person performs repetitive motions over a long period, fatigue builds up and efficiency drops. A robot can keep repeating the same motion for as long as power is supplied, maintaining consistent quality throughout.
This shift has led to a division of labor where robots take on physically demanding work while people focus on delicate tasks or judgment calls that depend on the situation. The type of automation robot leading this trend is the collaborative robot.
How Do Humans And Robots Work Together?
A cooperative robot is a robot designed to interact and work alongside human operators within the same space. Cooperative robots are designed to sense and respond to a worker’s movements using sensors and built-in safety features, making them well suited for close collaboration with people.
So how exactly do collaborative robots assist workers on the ground? Assembly processes offer a clear example. In a traditional workflow, a person has to repeatedly fetch parts, assemble them, and check the results themselves. Introducing a cooperative robot into this process allows the robot to transport the necessary parts and place them in position, cutting down on the worker’s simple movement and carrying tasks. Depending on the complexity of the work, robots can even handle basic fastening or assembly steps.
This frees workers to focus on checking part conditions and results, responding to exceptions, and overseeing overall process coordination and quality control. By dividing roles this way with collaborative robots, companies can also address labor shortages while boosting production output.
Cooperative Robots Advance Further With The Integration Of AI Technology
Recent collaborative robots are becoming increasingly autonomous as AI and machine learning technologies are incorporated into their design. Automation robots equipped with these advanced technologies can analyze data gathered during operation to identify efficient movements. They can adjust their actions based on circumstances and respond appropriately even when unexpected variables arise. As operational data accumulates over time, it can be used to continuously improve robot performance, gradually reducing the need for people to manually configure and manage every robot action.
Thanks to these technological advances, the range of applications for collaborative robots continues to expand. As sensor technology matures and situational responsiveness improves, cooperative robots are expected to move beyond structured environments like manufacturing and logistics into more varied fields such as agriculture and service industries, assisting people with an even wider range of tasks.
The Drive Technology Behind Cooperative Robot Durability, The BSR Series
For collaborative robots to be commercially viable in real work environments, they need reliable drive technology that allows them to move safely in coordination with a worker’s movements. The drive units that move an automation robot’s joints rely on actuators combining motors and reducers, with the reducer serving as the key component that converts the motor’s rotational movement into the speed and torque required for the task. Because the reducer plays such a critical role in the drive process, the tooth structure and size of the gears can significantly affect motion quality, making careful product review essential from the design stage. Reducers for collaborative robots in particular are exposed to repetitive tasks over long periods, so durability and reliability are essential.
Bonsystems’ BSR Series was designed to meet exactly these requirements, built around a cycloidal structure. This cycloidal reduction structure uses a gear design based on the trajectory of a cycloid curve, and because it rolls smoothly during operation, it can distribute external loads and impacts broadly across the gear. This helps prevent stress from concentrating on any single gear, extending component lifespan and improving the long-term reliability of the robot.
Another important consideration is that different joints in a collaborative robot require different levels of torque and speed. A joint that supports and moves the robot’s entire body may need greater torque, while a joint that picks up objects may need to prioritize fast response and stable motion. This means that selecting the right reduction ratio and specifications for each joint’s drive conditions is essential during robot design. The BSR Series offers a wide range of reduction ratios, from 19:1 to 99:1, within a single product lineup, with model-by-model specifications published on the official BSR series page. It’s also able to obtain wide reduction ratios even within a single compact structure, helping make efficient use of limited space within automation robot joints.
With its ability to deliver strong torque output even at a thin profile, along with its wide range of reduction ratios, the BSR Series can be flexibly applied to joints with limited space, expanding the design options available for robot engineers.
The goal of introducing collaborative robots is to complement human capability rather than replace it. Instead of taking over a worker’s role, cooperative robots are meant to free workers up to focus on higher-value tasks like systems management and quality control, ultimately helping to build a more efficient working environment.
We support the operation of a wide range of automation robots through reliable reducer technology, and we continue to develop the drive technology needed to advance the next generation of the robotics industry. If you need advice on drive components during collaborative robot development, or would like detailed materials on the BSR Series, please get in touch through our website.
F.A.Q
Q: What makes a collaborative robot suited to working next to people?
A: A collaborative robot is built to operate in the same space as a person. Through sensors and safety features, it can detect a worker’s approach or changes in the surrounding environment and respond accordingly, which gives it broad applicability across industries.
Q: Will cooperative robots be used in even more varied settings in the future?
A: As AI and machine learning technology continues to develop, cooperative robots are expected to become better at understanding their working environment and adjusting their actions accordingly. This should allow them to be applied to tasks with inconsistent conditions or that require situational responses.
Q: Why is a cycloidal reducer well suited for cooperative robots?
A: Because cooperative robot joints undergo continuous repetitive rotation and directional changes, they need to handle loads in a stable way. The cycloidal design distributes load evenly across the entire gear, allowing for stable performance even in environments involving long hours of repetitive motion or heavy load conditions.
Q: Why do different joints need different reduction ratios?
A: A joint that supports the robot’s whole body and a joint that handles objects at the end of the arm are asked for different levels of torque and speed. Covering that spread within one product lineup means each joint can be matched to its own drive conditions without changing reducer families.
Q: What advantages does the BSR Series offer for cooperative robot joint design?
A: The BSR Series is a reducer built around a proprietary cycloidal structure that delivers both strong torque output and structural stability, which allows it to output strong torque even in a compact size. The lineup also offers a range of reduction ratios to accommodate robot designs where different joints require different torque conditions.
